ZT1591 / MK1550
Installation Bulletin / Reference Guide
TM
This document is intended as a reference guide for installing and using a BENDER ZT1591 digital
clock and MK1550 remote. This document includes installation, setup, and usage instructions for the
ZT1591 clock and remote.
Only qualified maintenance personnel shall operate or service this equipment. These instructions
should not be viewed as sufficient for those who are not otherwise qualified to operate or service this
equipment. This document is intended to provide accurate information only. No responsibility is assumed by BENDER for any consequences arising from use of this document.
Front Panel and Dimensions - ZT1591
Front Panel and Dimensions - ZT1591RS
10” (254 mm)
14“ (355)
4“ (102)
8.5” (216 mm)
5.5” (140 mm)
5” (127 mm)
10“ (254)
8“ (203)
8“ (203)
1“ (25)
12“ (304)
Figure 1 - ZT1591 front panel and dimensions
1“ (25)
4“ (102)
Installation - ZT1591
Use this installation section for ZT1591 models NOT purchased pre-wired with backbox and
power supply. See section “Installation - ZT1591RS” for installation instructions otherwise.
Mounting
The front plate provides four holes with a diameter of 1/8” (3.2 mm) for screw mounting.
Use the provided #4-40 oval head, black oxide finished
screws. See Figure 1 for dimensions.
! DANGER
Wiring
The ZT1591 utilizes a 13-pin output that connects to
10-pin connector for the required remote (Mfgr. Ria, P/N
31114110) and 3-pin connector (Mfgr. Ria, P/N 31114103)
for the power supply. Figure 1 shows the connections between the ZT1591 clock and the MK1550 remote, if it is
being utilized.
Figure 2 - ZT1591RS front panel and dimensions
Installation - ZT1591RS
Use this installation section for ZT1591RS models purchased pre-wired in backbox. Otherwise,
refer to section “Installation - ZT1591” for instructions.
HAZARD OF ELECTRIC SHOCK
OR EXPLOSION
• Disconnect all power before servicing.
• Reference NFPA 99 / CSA Z32 for
Installation Standard.
A Class 2 Power Supply rated for 12 VDC and a minimum of 3 VA must be used when connecting to the clock’s supply voltage terminals. Wire into the provided plug-in connection
terminals. Apply minimum 4 lb-in torque for tightening field wires into the terminal blocks. Use
minimum AWG 24, maximum AWG 16 wires. Plug the connection terminals into the back of the
ZT1591. Refer to figure 3 for wiring diagram.
Mounting
ZT1591RS models are mounted in a backbox with dimensions of 12” W x 8” H x 4”D with 304SS
flush-mounted front trim of dimensions 14”W x 10”H. Refer to Figure 2.
Wiring
Required customer connections are located on a terminal block in the backbox. Connections
required include line-side power for the class 2 power supply and connections to the connected MK1550 remote. See section “Installation - MK1550” for more information on connecting the remote.
Wire into the provided terminal block. Apply minimum 4 lb-in torque for tightening field wires
into the terminal blocks. Use minimum AWG 24, maximum AWG 16 wires. See Figure 3 for wiring diagram.
Figure 3: Wiring Diagram - ZT1591 and ZT1591RS
2
Clock / Timer
(rear view)
Class 2
Power Supply
(included
with ZT1591RS)
3
1.
Customer connections for class 2 power supply:
100-240 VAC. Connection required for both
ZT1591 and ZT1591RS.
2.
12 VDC connection from line side of class 2 power supply to clock. This connection is pre-wired
with ZT1591RS. A class 2 power supply must be
provided and wired with the ZT1591 only.
3.
Remote control connections: Required for both
ZT1591 and ZT1591RS if remote is being utilized.
Refer to reverse side of this document for more
information on required remote connections.
1
MK1550
(rear view)
Bender Inc. • USA: 800.356.4266 / 610.383.9200 / [email protected] • Canada: 800.243.2438 / 905.602.9990 / [email protected] • www.bender.org
Document NAE2028401 • 08.2014 • © Bender Inc. • Page 1/1 • Side 1/2
ZT1591 / MK1550
Installation Bulletin / Reference Guide
TM
Front panel and dimensions - MK1550
Setup, settings, and use
The MK1550 uses standard single gang plate dimensions of 2.75” W x 4.5” H (70 x 114 mm).
All button functions described must be performed on the MK1550 remote. The settings below
refer to LED designations on the display of the connected ZT1591 clock. Refer to figure 6 for
these designations.
T1
1
2
3
4
T3
T2
1.
Hours Pushbutton
3.
Count and Reset Pushbutton
2.
Minutes Pushbutton
4.
Hold and Resume Pushbutton
Entering and exiting setup mode
1. Hold MINUTES and HOURS buttons simultaneously for at least 2 seconds. The device will
enter setup mode and initially be in “clock time set” mode, with the T1 decimal on.
2. Use the HOLD/RESUME (H/R) and COUNT/RESET (C/R) buttons separately to scroll through
the menu options. The HOURS and MINUTES buttons are used to change settings.
3. Once settings are complete, hold MINUTES and HOURS buttons to exit the menu.
Mounting - MK1550
Refer to figure 5 for mounting installation.
2.
Mount remote in enclosure using included #6-32 x 1” stainless steel flathead Phillips machine screw.
Attach stainless steel wall plate with included
#6-32 x 1/4” stainless steel oval head slotted machine screw.
2
Setting clock time
1. The T1 decimal should be on, and all other decimals should be off.
2. Press HOURS button to increment hours, MINUTES button to increment minutes.
NOTE: Setting the clock time will always be in 24 Hour mode.
1
Setting 12/24 hour mode
1. Press the H/R button to switch to 12/24 hour set mode. T3 decimals will be on, and all
others will be off.
2. Press HOURS button to toggle between 12 and 24 hour display mode.
Figure 5 (shiown right) -MK1550 mounting illustration
Display selection
1. Press the H/R button to switch to display select mode. The T4 decimal will be on, and all
others will be off.
2. Press HOURS button to toggle between two possible settings:
a. 1 is displayed: Clock displayed (“Clock mode”)
b. 2 is displayed: Timer displayed (“Timer mode”)
Wiring - MK1550
The MK1550 utilizes a 7-pin output that connects to a
7-pin connector (Mfgr. Ria, P/N 31114107). Wire into the
connector. Apply minimum 4 lb-in torque for tightening
field wires into the terminal blocks. Use minimum AWG
24, maximum AWG 16 wires. Plug the connector into the
back of the MK1550. Refer to Figure 3 on the reverse side
of this document for more information on wiring the
MK1550 to the ZT1591 clock.
! DANGER
HAZARD OF ELECTRIC SHOCK
OR EXPLOSION
• Disconnect all power before servicing.
• Reference NFPA Bulletin 99 for
Installation Standard.
5 VDC
20 mA
continuous operation
0 - +50 °C
-10 - +70 °C
Connectors
Number of connections
7
ManufacturerRia
Manufacturer part number 31114107
Maximum conductor size
AWG 16
Other / general data
Mounting
Weight
Technical data: ZT1591
Supply voltage requirements
Class 2 power supply, voltage rating
Class 2 power supply, power rating
Operating temperature
Storage temperature
#6 -32 oval head machine screws, stainless steel
< 0.25 lb
Class 2 power supply
12 VDC
3 VA
0 - +50 °C
-10 - +70 °C
Connector
Quantity of connectors
10-pin / 3-pin
ManufacturerRia
Manufacturer part numbers
31114110 / 31114103
Conductor sizes
AWG 24 - 16
Other / general data
Mounting
Weight
Display brightness
1. Press the H/R button to switch to display intensity adjust mode. The T5 decimal will be on,
and all others will be off.
2. Press HOURS button to increase intensity, MINUTES button to decrease intensity.
Functions and operation
All button functions must be performed on the connected MK1550 remote.
Display modes
The ZT1591 has one screen that may display either the clock or the timer.
Technical data: MK1550
Operating voltage
Maximum current draw Operating class
Ambient temperature
Operation
Storage T5
Figure 6 - LED designations for ZT1591 front display
Figure 4 - MK1550 front panel and dimensions
1.
T4
Qty. 4, #4-40 oval head, black oxide finished screws
< 1.3 lb
Clock display
When in clock mode, the currently set time will be displayed. It can operate in both 12 and 24
hour time modes. When 12 hour mode is activated, Decimal T1 distinguishes between AM/PM
time. When Decimal T1 is active and 12 hour time is active, PM is active. The realtime clock will
be active as long as the mode is active in the display selection.
Counter display
When in timer mode, the elapsed timer will be displayed. The counter is controlled by the
COUNT / RESET and HOLD / RESUME buttons. The elapsed time will be displayed during the
count and hold modes as long as the mode is active in the display selection.
The counter will count in seconds, displaying minutes and seconds, until it reaches the time
of 59:59. Upon rollover, the counter will display 01:00 and will count in minutes, displaying in
hours and minutes. Decimal T1 will activate to signify the display is in hours and minutes.
Settings storage
All settings changes are stored in non-volatile memory. Settings will remain if power is lost to
the clock.
Power failure / sleep mode
If power is lost to the clock, the realtime clock will be held for up to 24 hours. Upon loss of
power, the clock will power down and go into sleep mode. During this time, the display will be
shut down. When power is restored, the display will become active and the clock and counter
(if active) will resume without loss of time.
Additional technical data: ZT1591RS
Backbox dimensions (H x W x D)
Weight
Supply voltage Us
Frequency range Us
Inrush current (115 VAC / 230 VAC)
Bender Inc. • USA: 800.356.4266 / 610.383.9200 / [email protected] • Canada: 800.243.2438 / 905.602.9990 / [email protected] • www.bender.org
12” x 8” x 4” (305 x 203 x 102 mm)
< 7.9 lb
100 - 240 VAC
47 - 63 VAC
< 15 A / < 30 A
Document NAE2028401 • 08.2014 • © Bender Inc. • Page 1/1 • Side 2/2